+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14207 (1999 CS18) Classification: Main-belt Asteroid          SPK-ID: 2014207 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03564569340391653 2.3204e-08   a 2.997432213826313 1.488e-08 au q 2.890586664133238 6.9774e-08 au i 10.94585537146153 5.275e-07 deg node 100.7607181636633 3.0802e-06 deg peri 164.2106924180339 1.9296e-05 deg M 297.0551032567131 1.6495e-05 deg tp 2459531.921369204649 (2021-Nov-13.42136920) 8.6494e-05 TDB period 1895.494298771702 5.19 1.4115e-05 3.864e-08 d yr n .1899240742814596 1.4143e-09 deg/d Q 3.104277763519388 1.5411e-08 au   Orbit Determination Parameters    # obs. used (total)      2566      data-arc span      15334 days (41.98 yr)      first obs. used      1979-03-22      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43987      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:20:11   Additional Information  Earth MOID = 1.87393 au   Jupiter MOID = 1.98181 au   T_jup = 3.225  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.34   n/a E2021B10   diameter diameter 12.034 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 4.6911 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.147   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14207 (1999 CS18)          Discovered 1999-Feb-10 by LINEAR at Socorro Reference: 20000320/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 CS18 = 1979 FB4 = 1995 EF9 = 1997 UF10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 14:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin